The effect of resin coating on the shear punch strength of restorative glass ionomer cements

Pilo, Raphael; Ben-Amar, A; Barnea, Anna; Blasbalg, Yaron; Levartovsky, Shmuel

doi:10.1007/s00784-016-1862-8

Cited by 7 publications

(6 citation statements)

References 30 publications

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“…The tensile strengths of Riva Self-Cure and Fuji IX are statistically different at 14.2 ±5 .47 MPa and 14.1 ± 2.13 MPa, respectively. These results are comparable to those of a study by Pilo et al, 18 who found the same shear punch strength of glass ionomer cement when coated with varnishes. It was also proposed that the glass ionomer surface's strength may be improved by coating it to prevent it against water-based contamination.…”

Section: Discussionsupporting

confidence: 90%

“…The characteristics of GICs are examined for 24 hours or more after mixing, according to the majority of research. 18 , 28 There are certain limitations to the current study. One of the study's significant flaws is that it only employed 4 restorative materials and did not assess the diametral tensile and compressive strength of each material over time.…”

Section: Discussionmentioning

confidence: 92%

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Evaluating the Mechanical Properties of Restorative Glass Ionomers Cements

Bahammam¹,

Nathanson²,

Yang³

2022

International Dental Journal

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 92%

Evaluating the Mechanical Properties of Restorative Glass Ionomers Cements

Bahammam¹,

Nathanson²,

Yang³

2022

International Dental Journal

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“…The current data supported those of prior studies. Wang and others 37 reported that early water exposure did not weaken highly viscous glass ionomer materials, while Pilo and others 38 concluded that there was no need to protect highly viscous glass ionomers from water to improve strength. Other investigators have, however, reported better physicomechanical properties with resin coating.…”

Section: Discussionmentioning

confidence: 99%

Viscoelastic Properties of Contemporary Bulk-fill Restoratives: A Dynamic-mechanical Analysis

Ong

Yap

Hong

et al. 2018

Operative Dentistry

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This study investigated the viscoelastic properties of contemporary bulk-fill restoratives in distilled water and artificial saliva using dynamic mechanical analysis. The materials evaluated included a conventional composite (Filtek Z350), two bulk-fill composites (Filtek Bulk-fill and Tetric N Ceram), a bulk-fill giomer (Beautifil-Bulk Restorative), and two novel reinforced glass ionomer cements (Zirconomer [ZR] and Equia Forte [EQ]). The glass ionomer materials were also assessed with and without resin coating (Equia Forte Coat). Test specimens 12 × 2 × 2 mm of the various materials were fabricated using customized stainless-steel molds. After light polymerization/initial set, the specimens were removed from the molds, finished, measured, and conditioned in distilled water or artificial saliva at 37°C for seven days. The materials (n=10) were then subjected to dynamic mechanical testing in flexure mode at 37°C and a frequency of 0.1 to 10 Hz. Storage modulus, loss modulus, and loss tangent data were subjected to normality testing and statistical analysis using one-way analysis of variance/Dunnett's test and t-test at a significance level of p < 0.05. Mean storage modulus ranged from 3.16 ± 0.25 to 8.98 ± 0.44 GPa, while mean loss modulus ranged from 0.24 ± 0.03 to 0.65 ± 0.12 GPa for distilled water and artificial saliva. Values for loss tangent ranged from 45.7 ± 7.33 to 134.2 ± 12.36 (10). Significant differences in storage/loss modulus and loss tangent were observed between the various bulk-fill restoratives and two conditioning mediums. Storage modulus was significantly improved when EQ and ZR was not coated with resin.

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“…A shear punch test was performed according to Mount and co-workers. − Briefly, prepolymerized nanoassembly-incorporated resin composite restoratives were placed in 0.8 mm thick wash holders and light-cured to form flat parallel surfaces evenly supported and restrained by the holder (as demonstrated to be an important prerequisite by Pilo and co-workers). The samples were then placed in an Instron device (model 4502) for punching under a crosshead speed of 0.5 mm per min.…”

Section: Methodsmentioning

confidence: 99%

Enhanced Nanoassembly-Incorporated Antibacterial Composite Materials

Schnaider

Ghosh

Bychenko

et al. 2019

ACS Appl. Mater. Interfaces

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The rapid advancement of peptide-and aminoacid-based nanotechnology offers new approaches for the development of biomedical materials. The utilization of fluorenylmethyloxycarbonyl (Fmoc)-decorated self-assembling building blocks for antibacterial and anti-inflammatory purposes represents promising advancements in this field.Here, we present the antibacterial capabilities of the nanoassemblies formed by Fmoc-pentafluoro-L-phenylalanine-OH, their substantial effect on bacterial morphology, as well as new methods developed for the functional incorporation of these nanoassemblies within resin-based composites. These amalgamated materials inhibit and hinder bacterial growth and viability and are not cytotoxic toward mammalian cell lines. Importantly, due to the low dosage required to confer antibacterial activity, the integration of the nanoassemblies does not affect their mechanical and optical properties. This approach expands on the growing number of accounts on the intrinsic antibacterial capabilities of self-assembling building blocks and serves as a basis for further design and development of enhanced composite materials for biomedical applications.

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The effect of resin coating on the shear punch strength of restorative glass ionomer cements

Abstract: There is no need to protect HSGICs from water to gain extra strength unless the coating is retained for 2 h.

Cited by 7 publications

References 30 publications

Evaluating the Mechanical Properties of Restorative Glass Ionomers Cements

Evaluating the Mechanical Properties of Restorative Glass Ionomers Cements

Viscoelastic Properties of Contemporary Bulk-fill Restoratives: A Dynamic-mechanical Analysis

Enhanced Nanoassembly-Incorporated Antibacterial Composite Materials

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